pump-type pliers vs plural

pump-type pliers and plural both are nouns.

Word	Noun	Adjective	Verb	Adverb
pump-type pliers	Yes	No	No	No
plural	Yes	Yes	No	No

pump-type pliers (noun)	plural (noun)
a type of pliers; usually used to grip and turn nuts, bolts and pipe fittings	the form of a word that is used to denote more than one

pump-type pliers (adjective)	plural (adjective)
	grammatical number category referring to two or more items or units
	composed of more than one member, set, or kind